Improvement in brick-machines



2 Sheets--Sheet1.

R. T. BARTON. `Brick-Machines.

N0.137,122. PatentedMarch 25,1873.

2 SheIets--Sheet 2.

R. T. BARTON.

Brick-Machines.

*N0. 137,122. Patented March 25, 873.

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UNITEDV STATES PATENT CFFIGE.

lRICHARD T. BARTON, or `New HAVEN, ooNnncTioUT.

IMPROVEMENT IN BRICK-MACHINES.

Specification forming part of Letters Patent No. 137,122, dated March 25, 1873.

To all whom it may concern: v

VBe it known that I, RICHARD T. BARTON, of New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Machines for Making Brick 5 and I do hereby declare that the following is a full, clear, and exact description thereof, whereby a person skilled in the art can make and use thesame, reference bein ghad to the accompanying drawing and to the letters of reference marked thereon.

Like letters in the figures indicate the saine parts.

My invention consists in certain mechanical means and appliances by which the ground material is pressed into molds and then rotated so as to pass under powerful compressors, by which the brick is forcibly compressed and hardened so that it is delivered from the machine in the best condition for forming a hard and square-edged brick when burned. It also consists in the combination of certain mechanical devices to produce this result.

In the accompanying drawing, ontwo sheets,

4Figure 1 is a top view of my improved machine. Fig. 2 is a side view of the same. Fig. 3 is a view, from the right of Figs. l and 2, of the end of the machine. Fig. 4 is a bottom view, showing the mechanism which operates the rotating mold-board.

A, 8vo., are the xed parts of the frame of the machine. B is the shaft by whichmotion is communicated to the working parts of the machine. (l C1 C2 are cams for raising the levers D D1 D2. They are fixed tothe shaft B and turn with it. E E1 E2, Figs. 2 and 3, are springs for bringing the levers D D1 D2 back to their places after the cams have passed so as to allow them to.descend. F Fl F2 are plun gers moving up and down in fixed slides in the frame of the machine, and are operated by the shorter arms of the levers D D1 D2, respectively. These plun gers have at their lower ends the pressingblocks G G1 G2 for forcing the clay into the molds. H is a rotating moldboard having around near its peripheral edge the molds inwhich the bricks are formed, as shown at h, &c. I is a steam-pipe, connected with H by a stuffing-box, which allows the latter to turn. It has also the flexible branches i leading to the pressing-blocks. These pipes are for the purpose of introducing steam to heat the several parts coming in contact with the clay. J is the pug-mill for grinding and pressing the material which forms the brick into the mold 7L, 8vo., as they successively pass under it. This mill is of the ordinary construction, and is turned by means of the shaft j. K K are two cams,.which move the top of the rocking lever L alternately backward and forward. M is a reciprocating bar moving in the` slides N, which is attached to the lower end of the rocking lever L, and carries at its other end the pawl m for operating the wheel O. -This pawl engages one tooth of the wheel O at each movement, and carries the wheel around as M is pushed forward. The wheel O is firmly keyed to the same axis as the rotating mold-board H, and moves it the exact distance between two of the molds hat each movement of the bar M. P is a cam on the shaft B, which, as it revolves, presses down the bar Q and the rear end of the rocking lever R, and raises the stop S. This stop enters one ofthe holes h in the mold-board at each movement to press upward and out of the mold the brick which has been formed within it. T is a spring for again raising the rear end of the lever R and drawing the stop S downward out of the mold.

The operation of my invention is as follows: The material to form the bricks is placed in the hopper of the mill J. Power is applied to turn the shafts B and j, and steam is admitted through the pipe I. The mold-board H moves round with an intermittent rotary motion, and the molds 71., illed with clay or other material, are successively presented under the pressingblocks G G1 G1. The first block, G, drives the clay down into the mold very compactly, compressing it an inch or more, the bottom of the brick resting firmly upon the frame A. The brick then passes to the next block G1, and is further compressed, and again to G2, when it receives its inal compression. Meanwhile new bricks are brought under the first blocks, and are in their turn pressed, as described, the three levers moving simultaneously or in quick succession at each movement of the moldboard. When the brick passes the last lever it comes over the stop S, which lifts it out of its mold at the same time the previous brick receives its iinal pressure, and is removed by the attendant.

The stop or lifting mechanism S operates while the mold-board is at rest, and moves down out of the Way before it rotates.

The blocks G, Ste., are removable, and may be adjusted to different degrees of compression and different thicknesses of bricks by making them of different thicknesses.

Claims.

What I claim as my invention is- 1. The rotating mold-board H, in combination with the successive pressing devices D F G D1 Fl G1 D2 F2 G2, substantially as herein described.

2. The arrangement of the cams C Cl G2, K K', and P, the levers D Dl D2,'L, and It, the bars M m and Q, and the Wheel O, land springs E El *l2 and T, for producing` the described motions ofthe mold-board, the pressing-blocks, and the discharging device, substantially as specified.

f R. T. BARTON. Witnesses:

THEO. G. ELLIS, W. F. DYER: 

